Metal working – Means to assemble or disassemble – Coupling to conduit
Patent
1990-12-05
1992-10-13
Echols, P. W.
Metal working
Means to assemble or disassemble
Coupling to conduit
29240, 292811, 29283, B23P 1904
Patent
active
051539756
ABSTRACT:
An apparatus for performing at least one cycle of screwing and unscrewing of a screwthreaded joint for the assembly of tubes, which enables tightening of the joint with a high level of torque while avoiding damage to the screwthreads. The apparatus comprises two wrenches, each wrench engaging against a component of the joint, with each wrench comprising at least one mobile jaw which is slidable in a chamber. The mobile jaw is formed of a material which undergoes plastic deformation at the stress to which it is subjected in order to tighten or loosen the joint. This apparatus is used for bedding-in components of screwthreaded joints for tubes used in petroleum drilling operations.
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Fradin Louis
Meurant Michel
Bryant David P.
Echols P. W.
IDPA SA
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